<template lang="">
    <div>
        <!-- 面包屑导航区域 -->
       <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片区域 -->
       <el-card >
           <!-- 搜索与添加 -->
            
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable
                    @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border >
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                    </el-switch>
                </template>
                </el-table-column>
        <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
                <div>
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                  <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                    <el-button type="warning" icon="el-icon-setting" size="mini" @click="distributedRoles(scope.row)"></el-button>
                  </el-tooltip>
                </div>
            </template>
        </el-table-column>
    </el-table>

    <!-- 分页功能 -->
    
        <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[2, 3, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>

<!-- 添加用户对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%" @close ="addDialogClosed"> 
          <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" >
                <el-form-item label="用户名" prop="username">
                  <el-input v-model="addForm.username"></el-input>
                </el-form-item>

                 <el-form-item label="密码" prop="password">
                  <el-input v-model="addForm.password" type="password"></el-input>
                </el-form-item>

                 <el-form-item label="邮箱" prop="email">
                  <el-input v-model="addForm.email" ></el-input>
                </el-form-item>

                 <el-form-item label="手机号" prop="mobile">
                  <el-input v-model="addForm.mobile" ></el-input>
                </el-form-item>
            </el-form> 
          <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 修改用户 -->
         <el-dialog title="修改用户" v-show="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

      <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
    </div>
</template>

<script>
export default {
  data() {
     var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }
      // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total:0,
      // 控制对话框用户的显示隐藏
      addDialogVisible:false,
      //添加用户表单数据
      addForm:{
      username:'',
      password:'',
      email:'',
      mobile:'',
      addDialogVisible:''
      },
      addFormRules:{
         username:[
          { required: true,message: '请输入用户名',trigger: 'blur'},{ min:3,max:10,message: '用户名的长度在3~10个字符之间',trigger:'blur'}
        ], 
        password:[
          { required: true,message: '请输入密码',trigger: 'blur'},{ min:3,max:15,message: '密码的长度在6~15个字符之间',trigger:'blur'}
        ],
        email:[
           { required: true,message: '请输入用户邮箱',trigger: 'blur'},
           { validator: checkEmail, trigger: 'blur' }
        ],
        mobile:[
           { required: true,message: '请输入用户邮箱',trigger: 'blur'},
           { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 显示分配角色对话框
      setRoleDialogVisible:false,
      userInfo:[],
     rolesList:[],
    //  已选中角色id值
     selectedRoleId:''
      
    };
    
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      }); 
      if (res.meta.status != 200) {
        this.$message.error(res.meta.msg);
        return false;
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
      // console.log(this.userList);
    },
    async userStateChanged(userinfo) {
      console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败！");
      }
      this.$message.success("更新用户状态成功！");
    },
    //监听pagesize改变事件
    handleSizeChange(newSize){
        console.log(newSize);   
        this.queryInfo.pagesize = newSize
        this.getUserList()
    },
    //监听页码改变事件
    handleCurrentChange(newPage){
        console.log(newPage);
        this.queryInfo.pagenum = newPage
        this.getUserList()
    },
    //添加对话框关闭事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
      console.log(this.$refs);  
    },
    //点击按钮， 添加新用户
    addUser(){
      this.$refs.addFormRef.validate( async valid =>{
        if(!valid) return
        //验证通过发起添加用户请求
         const {data: res}  = await this.$http.post('users',this.addForm)

         if(res.meta.status !== 201 ){
           this.$message.error('添加用户失败')

           this.$message.success('添加用户成功')
           this.addDialogVisible = false
           //重新获取用户数据
           this.getUserList()
         }
      })
    },
  // 展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }

      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
      this.editDialogVisible = false;
    },
    // 修改用户表单预校验
    editUserInfo(){
         this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }

        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功！')
      })
    },
    removeUserById(id){
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async () => {
          const {data:res} = await this.$http.delete('users/' + id)
            if(res.meta.status !== 200){
              this.$message.error('删除用户失败')
              return false;
            }

          //  更新用户列表
          this.getUserList()
          //  提示删除成功
          this.$message.success('删除用户成功')
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });          
        });

    },
    async distributedRoles(userInfo){
       this.userInfo = userInfo

      // 在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }

      this.rolesList = res.data

      this.setRoleDialogVisible = true
    },
    //修改分配新角色
    async saveRoleInfo(){
        if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
     // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
    }
  }  
 
</script>

<style lang="less" scoped>
</style>